Insider · CIK 0001312143
Jeffrey G Winzeler
Files at AMBQ (Ambiq Micro, Inc.). First filing May 18, 2026, latest Oct 6, 2026.
Jeffrey G Winzeler files SEC Form 4 as CFO at AMBQ (Ambiq Micro, Inc.). Since May 18, 2026, Jeffrey G Winzeler has reported 0 open-market buys worth $0 and 2 open-market sells worth $2.2M, the latest filed on Oct 6, 2026.
A track record needs three past buys with six months of prices behind them; Jeffrey G Winzeler has 0, so none is measured yet.
The newest scored trade: sold $380k of AMBQ on Oct 2, 2026, filed Oct 6, 2026, scored 53 (moderate). In the last 12 months: 0 buys worth $0 and 2 sells worth $2.2M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
AMBQ: Ambiq Micro, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 53Moderate | Ambiq Micro, Inc. | $380k 5,455 shares | -5% | +200% from low-25% from high | |
| 52Moderate | Ambiq Micro, Inc. | $1.8M 26,000 shares | -22% | +222% from low0% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| May 14, 2026 | AMBQ AMBIQ MICRO, INC. | 26,000 0.12% of outstanding | $1.8M | May 14, 2026 | none |
Transactions
Every row this insider has filed, 13 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 2, 2026 | AMBQ Ambiq Micro, Inc. | SOpen-market sale Common Stock | -2,343 | $69.11 | $162k | 103,956 | 7 d ago |
| Oct 2, 2026 | AMBQ Ambiq Micro, Inc. | SOpen-market sale Common Stock | -2,828 | $69.77 | $197k | 101,128 | 7 d ago |
| Oct 2, 2026 | AMBQ Ambiq Micro, Inc. | SOpen-market sale Common Stock | -284 | $71.86 | $20k | 100,844 | 7 d ago |
| Jun 2, 2026 | AMBQ Ambiq Micro, Inc. | MOption exercise Common Stock | +5,952 | $16.80 | $100k | 106,299 | Jun 4, 2026 |
| Jun 2, 2026 | AMBQ Ambiq Micro, Inc. | MOption exercise Stock Option (Right to Buy)derivative | -5,952 | $0.00 | $0 | 104,953 | Jun 4, 2026 |
| May 14, 2026 | AMBQ Ambiq Micro, Inc. | MOption exercise Common Stock | +26,000 | $16.80 | $437k | 120,395 | May 18, 2026 |
| May 14, 2026 | AMBQ Ambiq Micro, Inc. | SOpen-market sale Common Stock | -25,918 | $69.90 | $1.8M | 94,477 | May 18, 2026 |
| May 14, 2026 | AMBQ Ambiq Micro, Inc. | SOpen-market sale Common Stock | -82 | $70.65 | $5,793 | 94,395 | May 18, 2026 |
| May 15, 2026 | AMBQ Ambiq Micro, Inc. | MOption exercise Common Stock | +5,952 | $16.80 | $100k | 100,347 | May 18, 2026 |
| May 14, 2026 | AMBQ Ambiq Micro, Inc. | MOption exercise Stock Option (Right to Buy)derivative | -26,000 | $0.00 | $0 | 116,857 | May 18, 2026 |
| May 15, 2026 | AMBQ Ambiq Micro, Inc. | MOption exercise Stock Option (Right to Buy)derivative | -5,952 | $0.00 | $0 | 110,905 | May 18, 2026 |
| Mar 6, 2026 | AMBQ Ambiq Micro, Inc. | AGrant or award Common Stock | +41,728 | $0.00 | $0 | 94,395 | Mar 10, 2026 |
| Oct 2, 2025 | AMBQ Ambiq Micro, Inc. | AGrant or award Common Stock | +52,667 | $0.00 | $0 | 52,667 | Oct 6, 2025 |
Questions about Jeffrey G Winzeler
Answered from the filings on this page, as of the latest one.
Is Jeffrey G Winzeler buying or selling?
In the last 12 months Jeffrey G Winzeler reported 0 open-market buys worth $0 and 2 open-market sells worth $2.2M on SEC Form 4; the latest was sold $380k of AMBQ on Oct 2, 2026. Grants, option exercises and tax withholding are not counted.
How did Jeffrey G Winzeler's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Jeffrey G Winzeler has 0.
Where does Jeffrey G Winzeler file Form 4?
Jeffrey G Winzeler has filed Form 4 at AMBQ (Ambiq Micro, Inc.) as Chief Financial Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.